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o 1,626,130 Apmi 2b 9 1927s E; BRTH ILUMB BOB Filed May 18, 1926 MINI', IUI

BYji

ATTORNEY Patented Apr. 26, 19.27.

UNITE STATES Emol-t BARTH, o?? New Yami, Y.

PLUME BOB.

Application file-'l .llay 18, 1926.

The main object olY this invention is to provide a tool ttor plumbing' vertical surtares. lt constitutes a distinct innu'oveme over the ordinary plumb. inasmuch as with this tool. only one man is required 'for determinine' a plumb, whereas with the ordinary type ot' plumb, two men are required. one to bold the end of the plumb line while the other steadies the plumb itself. The invention uses an ordinary plumb which serves as a housing' for levels whose bubblesl indu-ate vertical alignment ot the axis ot the plumb with the point otl securement ot the plumb line.

The above and other objects will become apparent from the deseription below. in which characters ot relierenee rel'er to likenamed parts in the drawing'.

Referring' briefly to the drawing'. Figure l is a front elevational View ol the plumb,

Figure 2 is a side elevational view el. Figi'- ure l.

Figure 3 is a. top plan view oli Figure l.

Figure et is a cross sectional View taken on line d ft ot Figure 2.

Fie. 5 is a fragmentary View ol the lower end ot the. plumb bob. showing the manner ot securing' the line thereto.

Reterrine` in detail to the drawing. the numeral l0 indieates the body ot' the plumb. This body is oetagonal in outline and at its lower end has an opening 'll which passes diametrieally thru the body 'trom one ur- 'tace to the opposite surface. smaller openingr l@ is bored axially into the body l() o l the plumb and serves as a guide Ytor the knotted end lS ot a lead line Vl-l. 'lhe ujnper end ol' the body is lormed into a eonieal tip l5 whose apex lies in the loiugiliuliual axis ot .he body. t a position intermediate the length ol the body, a transverse aperture 16 is formed. This aperture extends eutirely thru the body diametriralli' Ytrom one surlaee 17 to the opposite surtaee t8, :it the bottom ot this aperture, a level alas l5) filled with the usual liquid is mounted. This level afl-ass extends the entire width ol the plumb body. An additional aperture YZO passes thru the body lrom the surtaee 2l to the surface 22. The second-named aperture is at right angles to and intersects the lirstnamed aperture 16. In the bottom oil the second-named aperture, an additional level glass 23 is mounted in a suitable manner so that the same cannot move or be displaced.

Serial No. 109,839.

These level `glasses lll and 23 are positioned substaiit-ially at rie'ht angles to eaeh other so that a reading' in two planes may be had. Near the upper end oll the body l() below the tip l5. pintles Q-l and 25 are anchored. These pintles extend diametrieally outward 'trom opposite surlaees 2G and are held between the lingers when suspending the plumb.

The plumb is used lor levelling' or indieatiiur a true vertiral line and is especially usetul in building' trades. Assuming' that a wall is to be eonslrueted at a Certain position. the position ot' the 'all is indicated by a marker and the 'tree end ot the lead line lel is attaebed to the tloor or held down aligned with the niark made by either av weig'ht or any other .sei-urine' means. The plum b ibfeli' is then li'tted to the position near the eeiline' and is suspended by holding' the pi itles El and Q5 between two lingers so that l ie plumb may easily be trunnioned. tuspending the plumb between the lingers uit the tip Yl5 passes some point on the Cell y the. plumb is' shifted about until the bubbz it in eaeh level @glass are read and rep'i er between the eraduatioiis Q7 marked on the sui-'laces ot' the level glasses Ql and lf). ll'heu both bubbles register between said ,erznluation it indieates that the point at whirh the plumb touehes the Ceilingr lies Yerlieally above the. ,e'iven point on the tloor. 'lhe plumbing' operation. as stated. may be done by a single operator. whereas. at the present time with the ordinary type of plumb` two nien are required. one to shilt the tree end ol the lead line lo the ceiling win the other steadies the plumb suspended 'from the lead line until the tip ot the plumb lies with the. mark on the l'loor. This devre proceeds to aeeou'iplish its purpose in a reverse manner lo that ot the usual typo o l plumb inasmuch as the lead line is seeured to the floor and the pliuub is suspended or held in raised position to ultimately mark the ceiling' with the tip ol the plumb.

'lt to be noted that certain ehane'es in loria and eonstruetion may be made without. depaitirev from the spirit and scope ot the invention.

.l Claim:-

l. A plumb comprising an oetag'onal body, i eonieal tip at the upper end ot said body. a lead line normally suspended from said plumb, a pair ol apertures extending dialUl) lill

iiieli'ically thru the body with tlieii respective 'fixes falling; in iiitei'seeliinge; pliinesT :i level .iiiouned leiiig'cliivise in. @zich :ipei-'bui-e, said levels indicating the true vertical alignw ment of the longitudinal axis of said plumb, sind .me-(ins on said body :for suspending Said plumb So that the saine hangs vertically.

2. A plumb coii'iprising an oetagonzil body, :L conical tip :it the upper end ol? said body, i lead line noiiiiully suspended from Said plumb, :i pair el 'iipertiii'efs extending diziinetrieelly thi-ii *die body with their axes lzillii'ii: in inl'e'seel'fing planes, e level mount ed leuglliivise ,iii euch aperture, said levels imlicuiiingg` ille true vertical alignment olf tbe longituigliuzil axis of said plumb, menus on said body for suspending said plumb so that lli@ smile brings \feiiczilly said means comprising tepel-ing piulles extending diametriczilly 'from opposite sides;` of the body above ille levels :ind below the tip.

ln testimony ivlieiooll I zillix my signature.

@moli BIiiviii-i. 

